That's the recipe for the syrup [0], not the final beverage. The final beverage would obviously be diluted, to the given ratio of 7:1 in favor of carbonated water.
The water/sugar ratio for the OpenCola syrup is nearly 1:1, which is the same ratio as simple syrup [1].
The water/sugar ratio for the OpenCola syrup is nearly 1:1, which is the same ratio as simple syrup [1].
0: https://github.com/cognitom/OpenCola/blob/master/recipe.mark...
1: https://en.wikipedia.org/wiki/Syrup#Inverted_sugar_syrup